SUPPLEMENT.] 226 



FISSIDENS ( OCTODICERAS) JULIANUS (Savi) Schimp. 



Autoicous; growing in water, in lax dark green tufts. Leaves 

 distant, long and narrow, sword-shaped, not bordered. Capsule small, 

 erect ;'calyptra conical; teeth of peristome short, irregularly truncate. 

 (T. CXXV, C.) 



Sw.Muscus pinnatus, aquaticus, ramosissitnus, Linaria foliis MICHELI Gen. pi. 114 (1728). 

 Skitophyllutnfontanutn LA PYL. in DESV. Journ. Bot. 1813, p. 52, t. 34, f. 2. 

 Fontinalis Juliana SAVI Bot. etrusc. iii, 107 (1818), et in POLLIN. Fl. Veron. iii, 385 (1824). 



Octodiceras Julianum BRID. Bry. univ. ii, 678 (1827). BR. Sen. Bry. Eur. fasc. 17 (1842). 



LIMPR. in RABENH. D. kr. fl. Laubm. i, 457, fig. 145 (1887). DUNCAN in Journ. Bot 1902, 



p. 51, t. 430. 

 Fissidens debilis SCHWAEG. Suppl. I, P. II, p. II (1816). 



Cononiitrium Julianum MONT. Annal. sc. nat. 1837, p. 246, t. 4. SCHIMP. Corollar. 21 

 (1855), Synops. in (1860), 2 ed. 122. DE NOT. Syllab. 87 (1838), Epilogo 474. 

 SGHWAEG. Suppl. IV, t. 313 (1842). BOULAY Muse. Fr. 531 (.1884).. HUSNOT Muse. 

 Gall. 53, t. 16 (1884). 



Fissidens Julianus SCHIMP. in Flora 1838, P. I, p. 271. C. MUELL. Synops. i, 44 (1849). 

 Octodiceras fontanum LINDB. Bidrag. Moss. Synon. 23 (1863). 

 Schistophyllum Julianum LINDB. Muse. Scand. 13 (1879). 



Autoicous ; growing in water in lax dark green tufts, stems very 

 slender, 2 4 in. long, the leaves distant, patent, long lineal, entire, not 

 limbate, the nerve vanishing below the apex, the superior lamina about 

 3 times the length of the vaginant part, and the inferior not reaching the 

 base ; cells rounded-hexagonal. Fruit on a short axillar branch, seta short 

 and fleshy, calyptra conical, capsule small, erect, goblet-shaped, lid long 

 and conical, rostrate teeth irregular and imperfect. Male infl. gemmiform, 

 axillar, without paraphyses. 



HAB. On stones and wood in streams. Fr. 4 6, rare. 



In the Severn at Bewdley and near Stourport, and for an extent of 13 miles (Mr. J. E. 

 Duncan 1901)!! sterile. 



This elegant moss differs in no way from the genus Fissidens except in its 

 aquatic habit and imperfectly developed peristome. The fruit, when mature, drops 

 out of the vaginula and floats away, or sinks to the bottom. 



DITRICHUM VAGINANS .(Sull.} Hampe. 



Dioicous; in small dense tufts. Leaves stiff, erect, from a longish 

 ovate base gradually tapering to a point, nerved to apex. Capsule erect, 

 cylindric, lid conical. (T. CXXV, E.) 



SYN.-rnVAastom^^s SULLIV. Muse. Alleg. no. 176 (1846). SULLIV. LESQ. Muse. bor. 

 Ltptotrichum homomallum ft. strictum SCHIMP. Synops. 144 (1860). 



